A tire having a volume of 3 ft3 contains air at a gage pressure of 26 psi and a temperature of 70°F. Determine the density (slugs/ft3) of the air contained in the tire. For air, R = 1.716 x 103 ft-lb/slug-°R.

A manometer containing two oils is used to assess the pressure of air in a storage tank.  Given the configuration of the oils in the picture, calculate the pressure in the tank.  The density of air is negligible to the density of the oils (?oil1 = 1000 ??/m3; ?oil2 = 400 ??/m3 ). The height of oil 1 is 1 ?, and the height of oil 2 is 0.8 ?.  The atmospheric pressure is 98 ???. The manometer is ipen to the atmosphere.

Consider a tall building. The air pressure at the bottom of the building is 101155Pa. The top of the building is 363m above. Assuming that the air density is constant at 1.225kg/m³, what is the percentage drop in pressure at the top of the building relative to the pressure at the bottom? Give your answer to 1 decimal place. Use the acceleration due to gravity of 9.81m/s².

A car tyre has a gauge pressure of 1.9 bar.  Determine it's absolute pressure in mmHg, assuming the atmospheric pressure is 1.013 bar.